Like the turning leaves or below-freezing temps Mother Nature insists on bringing to Denver, the onslaught of pumpkin beers has become a sign of the season. And this year, bars and tap rooms are serving up a bumper crop. Beer Advocate lists more than 300 pumpkin ales, porters and IPAs. Here are three natives available on tap in Denver:

Avery’s Rumpkin The Boulder brewery promises to tap the last of it’s famed Rumpkin for three days straight starting Dec. 21. This dark, thick and super-boozy offering tastes of dark rum with a bit of pumpkin pie spice. At 15.9 percent ABV, this rarity is for big beer fans and definitely not for designated drivers.

Strange Brewing’s Pumpkin Porter – The dark roast in this medium-bodied brew tends to overwhelm the pumpkin flavors, though hints of traditional notes of cinnamon and clove remain. This offering from the fledgling Denver brewer is a good choice for porter lovers looking to spice things up, but just a bit.

Dry Dock’s Halfmoon Pumpkin – This beer might be closest to what comes to mind when you hear the words “pumpkin ale.” This Aurora-based brew is amber in color, light in body and serious about its spice. Like drinking a pumpkin pie, only not so sweet.

Bonus! – Be on the lookout for the last drops of Upslope’s Pumpkin Ale, a clear standout this season, and it’s not just me who thinks so. The Boulder brew won a gold medal this year at the Great American Beer Festival. It’s a pumpkin beer for people who like their ales a little less spicy and a bit more refreshing. The brewery says it sold its last pint a week ago, but you never know whether some crafty bar owner has some squirreled away. If you find this on tap. Drink it.